In the context of the network "Connecting Cities" the Ars Electronica Futurelab connects media facades and large-sized screens all over the world. Under the title "Participatory City 2014" the network invites artists to submit projects, which deal with the question of Urbans Screens and LED-Facades that enable citizens to experience new ways of interaction with the urban environment and to understand, respond to, evaluate and question the transformations that the city is undergoing.